| Semi-analytical Monte Carlo simulation of laser-induced fluorescence propagation in an optically participating spray |
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| 作者姓名： | GREHAN Gérard |
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| 作者单位： | [1]State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China [2]Laboratoire d＇Electromagnétisme et Systémes Particulaires, Universite ＆ INSA Rouen, CORIA/CNRS UMR 6614, France |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (No. 60534030)，the Scholarship of French Embassy in China and the Doctoral Grant from French Embassy in China |
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| 摘 要： | A semi-analytical Monte Carlo (SMC) simulation was developed to simulate the propagation of laser-induced fluo- rescence (LIF) in an optically participating spray, which simultaneously exhibits spectrally dependent emission, anisotropic scattering, absorption, and re-emission. The SMC simulation is described and then applied to an experimental configuration of a cloud of polydisperse droplets composed of water and sulforhodamine B dye. In the SMC simulation, the collected LIF flux on the remote receptor element is calculated as the global contribution from the emissive source, single, twice, … and nth collision events in any sequence. The effects on the fluorescence photons propagation of spray parameters like the dye concentration, droplets concentration, and droplets size are examined. Three spectral bands representing different optical properties are chosen to analyze the interference of absorption, scattering and re-emission on the detected LIF flux. The obtained spectral LIF flux distribution on the receptor demonstrates a “red shift” phenomenon.
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| 关 键 词： | 荧光技术 模拟技术 散射 概论 |
| 收稿时间： | 19 December 2006 |
| 修稿时间： | 2006-12-192007-03-28 |
Semi-analytical Monte Carlo simulation of laser-induced fluorescence propagation in an optically participating spray |
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| Chen?Ling-hong,Roze?Claude,Garo?Annie,Girasole?Thierry,Cen?Ke-fa,Grehan?Gérard.Semi-analytical Monte Carlo simulation of laser-induced fluorescence propagation in an optically participating spray[J].Journal of Zhejiang University Science,2007,8(7):1170-1178. |
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| Authors: | Chen Ling-hong Roze Claude Garo Annie Girasole Thierry Cen Ke-fa Grehan Gérard |
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| Institution: | (1) State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China;(2) Laboratoire d’Electromagnétisme et Systèmes Particulaires, Universite & INSA Rouen, CORIA/CNRS UMR 6614, France |
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| Abstract: | A semi-analytical Monte Carlo (SMC) simulation was developed to simulate the propagation of laser-induced fluorescence (LIF)
in an optically participating spray, which simultaneously exhibits spectrally dependent emission, anisotropic scattering,
absorption, and re-emission. The SMC simulation is described and then applied to an experimental configuration of a cloud
of polydisperse droplets composed of water and sulforhodamine B dye. In the SMC simulation, the collected LIF flux on the
remote receptor element is calculated as the global contribution from the emissive source, single, twice, … and nth collision events in any sequence. The effects on the fluorescence photons propagation of spray parameters like the dye
concentration, droplets concentration, and droplets size are examined. Three spectral bands representing different optical
properties are chosen to analyze the interference of absorption, scattering and re-emission on the detected LIF flux. The
obtained spectral LIF flux distribution on the receptor demonstrates a “red shift” phenomenon.
Project supported by the National Natural Science Foundation of China (No. 60534030), and the Scholarship of French Embassy
in China and the Doctoral Grant from French Embassy in China |
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| Keywords: | Laser-induced fluorescence (LIF) Semi-analytical Monte Carlo (SMC) simulation Absorption Anisotropic scattering Re-emission Spray |
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